CN106200754A - A kind of photovoltaic generating system maximum power tracking device - Google Patents

A kind of photovoltaic generating system maximum power tracking device Download PDF

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Publication number
CN106200754A
CN106200754A CN201610764157.0A CN201610764157A CN106200754A CN 106200754 A CN106200754 A CN 106200754A CN 201610764157 A CN201610764157 A CN 201610764157A CN 106200754 A CN106200754 A CN 106200754A
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CN
China
Prior art keywords
end
described
electric capacity
connects
solar
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Application number
CN201610764157.0A
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Chinese (zh)
Inventor
陈青
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四川蜀旺新能源股份有限公司
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Priority to CN201610764157.0A priority Critical patent/CN106200754A/en
Publication of CN106200754A publication Critical patent/CN106200754A/en

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Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/66Regulating electric power
    • G05F1/67Regulating electric power to the maximum power available from a generator, e.g. from solar cell
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion electric or electronic aspects
    • Y02E10/58Maximum power point tracking [MPPT] systems

Abstract

The invention discloses a kind of photovoltaic generating system maximum power tracking device, including solar photovoltaic assembly, current transformer, voltage transformer and maximal power tracing controller for solar, current transformer and voltage transformer input connect solar photovoltaic assembly respectively, outfan connects maximal power tracing controller for solar, maximal power tracing controller for solar connects power output module by power driver module, power output module connects load, present configuration principle is simple, intelligence degree is high, control accuracy is high, it is capable of photovoltaic maximum power to follow the tracks of;Power conversion efficiency can also be improved simultaneously, reduce electric energy loss.

Description

A kind of photovoltaic generating system maximum power tracking device

Technical field

The present invention relates to field of photovoltaic technology, be specially a kind of photovoltaic generating system maximum power tracking device.

Background technology

Photovoltaic power generation technology and industry are not only an important supplement of the current energy, more for becoming following main energy sources The potentiality in source, but the cost of photovoltaic display is high, conversion efficiency is low, and expensive, the initial stage puts into bigger.And its output Easily affected by the factor such as intensity of sunshine, ambient stable, in order to improve the efficiency of photovoltaic generating system, made full use of photovoltaic display Produced energy is the basic demand of photovoltaic generating system, in present photovoltaic generating system, usually requires that photovoltaic displays Output remain maximum, i.e. system wants to follow the tracks of in real time the maximum power point of photovoltaic display.

Summary of the invention

It is an object of the invention to provide a kind of photovoltaic generating system maximum power tracking device, to solve above-mentioned background skill The problem proposed in art.

For achieving the above object, the present invention provides following technical scheme: a kind of photovoltaic generating system maximal power tracing fills Put, including solar photovoltaic assembly, current transformer, voltage transformer and maximal power tracing controller for solar, described electricity Current transformer and described voltage transformer input connect solar photovoltaic assembly respectively, and outfan connects maximal power tracing too Sun energy controller, described maximal power tracing controller for solar connects power output module by power driver module, described Power output module connects load.

Preferably, described power driver module includes switch tube driving circuit, IGBT switching tube, metal-oxide-semiconductor, the first electronic cutting Closing and the second electrical switch, the colelctor electrode of described IGBT switching tube and the first power supply input connect, and described IGBT switchs The emitter stage of pipe and the second power supply input connect, and the gate pole of described IGBT switching tube is with described switch tube driving circuit even Connect;The drain electrode of described metal-oxide-semiconductor is connected with the colelctor electrode of described IGBT switching tube, and the source electrode of described metal-oxide-semiconductor switchs with described IGBT The emitter stage of pipe connects, the grid of described metal-oxide-semiconductor respectively with the first end of described first electrical switch and described second electronic cutting The first end closed connects;Second end of described first electrical switch is connected with the gate pole of described IGBT switching tube;Described second electricity Second end of son switch is connected with the source electrode of described metal-oxide-semiconductor;The control end of described first electrical switch and described second electronic cutting The control end closed all is connected with described switch tube driving circuit.

Preferably, also including temperature sensor and temperature signal amplification module, described temperature sensor inputs connects too Sun energy photovoltaic module, outfan connects temperature signal amplification module, and described temperature signal amplification module connects maximal power tracing Controller for solar.

Preferably, described temperature signal amplification module includes operational amplifier, two-stage field effect broadband amplifier and grips Streamline circle, an input of described operational amplifier connects resistance B one end and electric capacity B one end respectively, another termination of electric capacity B Ground, the resistance B other end connects resistance A one end and electric capacity A one end respectively, the outfan of electric capacity A other end concatenation operation amplifier, Another input of operational amplifier connects resistance C one end and resistance D one end respectively, resistance C other end ground connection, resistance D another The outfan of end concatenation operation amplifier;First end of described two-stage field effect broadband amplifier connects electric capacity E one end, electric capacity E Other end connection resistance F one end, the outfan of resistance F other end concatenation operation amplifier, two-stage field effect broadband amplifier Second end connects electric capacity F one end, electric capacity G one end, electric capacity H one end respectively by choking-winding, and the electric capacity F other end, electric capacity G are another One end, the equal ground connection of the electric capacity H other end, the 3rd end of two-stage field effect broadband amplifier is put by electric capacity D, resistance E concatenation operation The outfan of big device, two-stage field effect broadband amplifier the 4th end ground connection.

Preferably, described temperature sensor is divided into the first temperature sensor, the second temperature sensor, the 3rd temperature sensing Device, N temperature sensor, N is the integer more than 3.

Preferably, described maximal power tracing controller for solar model uses SSCM-1224-15.

Compared with prior art, the invention has the beneficial effects as follows:

(1) present configuration principle is simple, and intelligence degree is high, control accuracy is high, it is possible to realize photovoltaic generation maximum work Rate is followed the tracks of;It addition, the loss when power driver module that the present invention uses can reduce low current;Power conversion can also be improved Efficiency, reduces electric energy loss.

(2) present invention also uses multiple temperature sensor and temperature signal amplification module, it is possible to realize temperature signal Quickly amplify and transmit, further increase maximal power tracing controller for solar control chamber efficiency.

Accompanying drawing explanation

Fig. 1 is the embodiment of the present invention one theory diagram;

Fig. 2 is the power driver module schematic diagram of the present invention;

Fig. 3 is embodiments of the invention two theory diagrams;

Fig. 4 is the temperature signal amplification module schematic diagram of the present invention;

In figure: 1, solar photovoltaic assembly;2, current transformer;3, voltage transformer;4, maximal power tracing solar energy Controller;5, power driver module;6, power output module;7, load;8, switch tube driving circuit;9, IGBT switching tube;10、 Metal-oxide-semiconductor;11, the first electrical switch;12, the second electrical switch;13, the first power supply input;14, the second power supply is defeated Enter end;15, temperature signal amplification module;16, operational amplifier;17, two-stage field effect broadband amplifier;18, choking-winding; 19, the first temperature sensor;20, the second temperature sensor;21, three-temperature sensor;171, the first end;172, the second end; 173, the 3rd end;174, the 4th end;1a, resistance A;2a, resistance B;3a, resistance C;4a, resistance D;5a, resistance E;6a, resistance F; 1b, electric capacity A;2b, electric capacity B;3b, electric capacity C;4b, electric capacity D;5b, electric capacity E;6b, electric capacity F;7b, electric capacity G;8b, electric capacity H.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of protection of the invention.

Embodiment one:

Referring to Fig. 1-2, the present invention provides a kind of technical scheme: a kind of photovoltaic generating system maximum power tracking device, Including solar photovoltaic assembly 1, current transformer 2, voltage transformer 3 and maximal power tracing controller for solar 4, electric current is mutual Sensor 2 and described voltage transformer 3 input connect solar photovoltaic assembly 1 respectively, and outfan connects maximal power tracing too Sun energy controller 4, maximal power tracing controller for solar 4 model uses SSCM-1224-15;Maximal power tracing solar energy Controller 4 connects power output module 6 by power driver module 5, and power output module 6 connects load 7.

In the present embodiment, power driver module 5 includes switch tube driving circuit 8, IGBT switching tube 9, metal-oxide-semiconductor 10, first Electrical switch 11 and the second electrical switch 12, colelctor electrode and the first power supply input 13 of IGBT switching tube 9 connect, IGBT Emitter stage and the second power supply input 14 of switching tube 9 connect, the gate pole of IGBT switching tube 9 and switch tube driving circuit 8 Connect;The drain electrode of metal-oxide-semiconductor 10 is connected with the colelctor electrode of IGBT switching tube 9, the source electrode of metal-oxide-semiconductor 10 and the transmitting of IGBT switching tube 9 Pole connect, the grid of metal-oxide-semiconductor 10 respectively with the first end of the first electrical switch 11 and the first end of described second electrical switch 12 Connect;Second end of the first electrical switch 11 is connected with the gate pole of IGBT switching tube 9;Second end of the second electrical switch 12 with The source electrode of metal-oxide-semiconductor 10 connects;The control end controlling end and the second electrical switch 12 of the first electrical switch 11 all drives with switching tube Galvanic electricity road 8 connects, and the power driver module that the present invention uses can reduce loss during low current;Power conversion can also be improved Efficiency, reduces electric energy loss.

Embodiment two:

Referring to Fig. 3-4, embodiment two is with the difference of embodiment one, adds multiple temperature sensor and temperature letter Number amplification module, a kind of photovoltaic generating system maximum power tracking device, including solar photovoltaic assembly 1, current transformer 2, Voltage transformer 3 and maximal power tracing controller for solar 4, current transformer 2 and voltage transformer 3 input connect respectively Solar photovoltaic assembly 1, outfan connects maximal power tracing controller for solar 4, maximal power tracing controller for solar 4 Model uses SSCM-1224-15;Maximal power tracing controller for solar 4 connects power output mould by power driver module 5 Block 6, described power output module 6 connects load 7.

In the present embodiment, also including temperature sensor and temperature signal amplification module 15, temperature sensor inputs connects Solar photovoltaic assembly 1, outfan connect temperature signal amplification module 15, temperature signal amplification module 15 connect peak power with Track controller for solar 4.

In the present embodiment, temperature signal amplification module 15 includes operational amplifier 16, two-stage field effect broadband amplifier 17 And choking-winding 18, an input of operational amplifier 16 connects resistance B 2a one end and electric capacity B 2b one end respectively, electricity Holding B 2b other end ground connection, the resistance B 2a other end connects resistance A 1a one end and electric capacity A 1b one end respectively, and A 1b is another for electric capacity The outfan of one end concatenation operation amplifier 16, another input of operational amplifier 16 connects resistance C 3a one end and electricity respectively Resistance D 4a one end, resistance C 3a other end ground connection, the outfan of resistance D 4a other end concatenation operation amplifier 16;Two-stage field is imitated The first end 171 answering broadband amplifier 17 connects electric capacity E 5b one end, and the electric capacity E 5b other end connects resistance F 6a one end, resistance The outfan of F 6a other end concatenation operation amplifier 16, the second end 172 of two-stage field effect broadband amplifier 17 passes through chokes Coil 18 connects electric capacity F 6b one end, electric capacity G 7b one end, electric capacity H 8b one end, and the electric capacity F 6b other end, electric capacity G respectively The 7b other end, the electric capacity H equal ground connection of the 8b other end, the 3rd end 173 of two-stage field effect broadband amplifier 17 by electric capacity D 4b, The outfan of resistance E 5a concatenation operation amplifier 16, two-stage field effect broadband amplifier 17 the 4th end 174 ground connection.Operation amplifier Signal is processed by device 16, it is ensured that the quality of transmission signal, and by feedback principle, signal message is amplified 2 times, the most again Pass to two-stage field effect broadband amplifier 17 below and again signal is carried out secondary amplification, the most again signal is exported, this Invention also uses multiple temperature sensor and temperature signal amplification module, it is possible to realize quickly amplifying and passing temperature signal Defeated, further increase maximal power tracing controller for solar control chamber efficiency.

Present configuration principle is simple, and intelligence degree is high, control accuracy is high, it is possible to realize photovoltaic maximum power with Track.

Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible Understand and these embodiments can be carried out multiple change without departing from the principles and spirit of the present invention, revise, replace And modification, the scope of the present invention be defined by the appended.

Claims (6)

1. a photovoltaic generating system maximum power tracking device, including solar photovoltaic assembly (1), current transformer (2), electricity Pressure transformer (3) and maximal power tracing controller for solar (4), it is characterised in that: described current transformer (2) and described electricity Pressure transformer (3) input connects solar photovoltaic assembly (1) respectively, and outfan connects maximal power tracing controller for solar (4), described maximal power tracing controller for solar (4) connects power output module (6), institute by power driver module (5) State power output module (6) and connect load (7).
A kind of photovoltaic generating system maximum power tracking device the most according to claim 1, it is characterised in that: described power Module (5) is driven to include switch tube driving circuit (8), IGBT switching tube (9), metal-oxide-semiconductor (10), the first electrical switch (11) and the Two electrical switches (12), the colelctor electrode of described IGBT switching tube (9) and the first power supply input (13) connect, described IGBT The emitter stage of switching tube (9) and the second power supply input (14) connect, and the gate pole of described IGBT switching tube (9) is opened with described Close tube drive circuit (8) to connect;The drain electrode of described metal-oxide-semiconductor (10) is connected with the colelctor electrode of described IGBT switching tube (9), described The source electrode of metal-oxide-semiconductor (10) is connected with the emitter stage of described IGBT switching tube (9), and the grid of described metal-oxide-semiconductor (10) is respectively with described First end of the first electrical switch (11) and the first end of described second electrical switch (12) connect;Described first electrical switch (11) the second end is connected with the gate pole of described IGBT switching tube (9);Second end of described second electrical switch (12) is with described The source electrode of metal-oxide-semiconductor (10) connects;The control end of described first electrical switch (11) and the control of described second electrical switch (12) End is all connected with described switch tube driving circuit (8).
A kind of photovoltaic generating system maximum power tracking device the most according to claim 1, it is characterised in that: also include temperature Degree sensor and temperature signal amplification module (15), described temperature sensor inputs connects solar photovoltaic assembly (1), output End connects temperature signal amplification module (15), and described temperature signal amplification module (15) connects maximal power tracing solar control Device (4).
A kind of photovoltaic generating system maximum power tracking device the most according to claim 3, it is characterised in that: described temperature Signal amplification module (15) includes operational amplifier (16), two-stage field effect broadband amplifier (17) and choking-winding (18), One input of described operational amplifier (16) connects resistance B (2a) one end and electric capacity B (2b) one end, electric capacity B (2b) respectively Other end ground connection, resistance B (2a) other end connects resistance A (1a) one end and electric capacity A (1b) one end respectively, electric capacity A (1b) another The outfan of end concatenation operation amplifier (16), another input of operational amplifier (16) connects resistance C (3a) one end respectively With resistance D (4a) one end, resistance C (3a) other end ground connection, the output of resistance D (4a) other end concatenation operation amplifier (16) End;First end (171) of described two-stage field effect broadband amplifier (17) connects electric capacity E (5b) one end, electric capacity E (5b) other end Connecting resistance F (6a) one end, the outfan of resistance F (6a) other end concatenation operation amplifier (16), two-stage field effect broadband is put Second end (172) of big device (17) connects electric capacity F (6b) one end, electric capacity G (7b) one end, electric capacity respectively by choking-winding (18) H (8b) one end, and electric capacity F (6b) other end, electric capacity G (7b) other end, the equal ground connection of electric capacity H (8b) other end, two-stage field effect 3rd end (173) of broadband amplifier (17) passes through electric capacity D (4b), the outfan of resistance E (5a) concatenation operation amplifier (16), Two-stage field effect broadband amplifier (17) the 4th end (174) ground connection.
A kind of photovoltaic generating system maximum power tracking device the most according to claim 3, it is characterised in that: described temperature Sensor is divided into the first temperature sensor (19), the second temperature sensor (20), three-temperature sensor (21), N temperature to pass Sensor, N is the integer more than 3.
A kind of photovoltaic generating system maximum power tracking device the most according to claim 1, it is characterised in that: described maximum Power tracking controller for solar (4) model uses SSCM-1224-15.
CN201610764157.0A 2016-08-30 2016-08-30 A kind of photovoltaic generating system maximum power tracking device CN106200754A (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101692599A (en) * 2009-09-30 2010-04-07 燕山大学 Impedance matching control (IMC) method of maximum power point tracking (MPPT) for photovoltaic power generation system
CN102291050A (en) * 2011-08-17 2011-12-21 华北电力大学(保定) A photovoltaic power generating system and method for maximum power point tracking device
CN202444444U (en) * 2012-01-19 2012-09-19 北京工商大学 Maximum power point tracking device for photovoltaic power generation system under partially-shielded condition
CN203911735U (en) * 2014-05-14 2014-10-29 美的集团股份有限公司 Intelligent power module driving circuit and intelligent module
US20150085542A1 (en) * 2013-09-26 2015-03-26 Delta Electronics, Inc. Micro inverter of solar power system and method of operating the same
CN104965558A (en) * 2015-05-27 2015-10-07 华北电力大学(保定) Photovoltaic power generation system maximum power tracking method and apparatus considering the factor of haze
CN204794129U (en) * 2015-07-08 2015-11-18 湖北天地春现代农业发展有限公司 High -power photovoltaic power generation tracks control system
CN205080462U (en) * 2015-09-28 2016-03-09 安徽理工大学 Photovoltaic MPPT controlling means based on singlechip and AIC
CN105825587A (en) * 2016-06-14 2016-08-03 江苏准信自动化科技股份有限公司 Full-automatic object storing and taking system
CN206178523U (en) * 2016-08-30 2017-05-17 四川蜀旺新能源股份有限公司 Photovoltaic power generation system maximum power tracking means

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101692599A (en) * 2009-09-30 2010-04-07 燕山大学 Impedance matching control (IMC) method of maximum power point tracking (MPPT) for photovoltaic power generation system
CN102291050A (en) * 2011-08-17 2011-12-21 华北电力大学(保定) A photovoltaic power generating system and method for maximum power point tracking device
CN202444444U (en) * 2012-01-19 2012-09-19 北京工商大学 Maximum power point tracking device for photovoltaic power generation system under partially-shielded condition
US20150085542A1 (en) * 2013-09-26 2015-03-26 Delta Electronics, Inc. Micro inverter of solar power system and method of operating the same
CN203911735U (en) * 2014-05-14 2014-10-29 美的集团股份有限公司 Intelligent power module driving circuit and intelligent module
CN104965558A (en) * 2015-05-27 2015-10-07 华北电力大学(保定) Photovoltaic power generation system maximum power tracking method and apparatus considering the factor of haze
CN204794129U (en) * 2015-07-08 2015-11-18 湖北天地春现代农业发展有限公司 High -power photovoltaic power generation tracks control system
CN205080462U (en) * 2015-09-28 2016-03-09 安徽理工大学 Photovoltaic MPPT controlling means based on singlechip and AIC
CN105825587A (en) * 2016-06-14 2016-08-03 江苏准信自动化科技股份有限公司 Full-automatic object storing and taking system
CN206178523U (en) * 2016-08-30 2017-05-17 四川蜀旺新能源股份有限公司 Photovoltaic power generation system maximum power tracking means

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